After losing her parents and having her family taken from her,
Grace grows up with only one thing in her heart for thirteen long years, revenge.

Then there is Ares, a man who lost everything to the very same enemy.

To achieve her revenge, Grace proposes a fake relationship to him, and the two enter into a cold, calculated contract...

But within the flames of vengeance, unexpected emotions begin to take root,
slowly turning into love and both fear that these feelings may become an obstacle to their revenge.

Caught between revenge and love,
what choice will the two of them make as they race toward the end?